I've installed the OEM navigation system in my 02 I35 and now Im having volume issues (among other problems). As soon as I get below 45mph, the volume turns all the way up (and keeps trying to turn up even when I turn it down).

Also, I seem to have lost my steering wheel controls and my trip button no longer works to change the info screen to mpg, dte, ect.

Any thoughts for either of these problems??

 

You could try posting in the correct section...

 

Yep - realized that after it was too late.